RomanJust tested to verify the input impedance and it shows to be 10 Mega Ohm. Apparently the input low pass filter drops it from 20 Meg down to just a little over 10 Meg (2% above 10 Meg). Need to improve it. The goal is toget higher impedance, significantly above 10 Meg. My Fun continues.
Input impedance verification test.
A project log for Multimeter +
Dual input 24 bit Multimeter with USB interface, single channel 10 bit USB oscilloscope, PWM out, 2 Ch Data-logger, R, C, Digital sniffer.
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